blustealer | d855efc2e9bd0f59beeae00942f616c34a332edf9888f5a92d0b95bce37cc25f

General

Target

SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe
Size

156KB
MD5

0de35e232c585438a87c563cb13c4ec5
SHA1

e2dbb9bba04f64dde832e85d4466018fa36e1d08
SHA256

d855efc2e9bd0f59beeae00942f616c34a332edf9888f5a92d0b95bce37cc25f
SHA512

ed15ed4614e1421404188e0cc84a08db96812c59ad41d9a7f7cd3586b92959d048a3a71040ac1960cdf62652846e7ad2316dd9c8129d4ccd389a9088536ef92d
SSDEEP

3072:YYF4uzsugBdatnJLxgzufBY3eixnD+68QaimUtzZ7mwHm:YYF4i9gBktn1IYYOEDisG

Score

10^/10

blustealer stormkitty collection spyware stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/1148-141-0x0000000000F90000-0x0000000000FAA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
18	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4892 set thread context of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 740 set thread context of 1148	740	cvtres.exe	85

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1148	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
740	cvtres.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 4892 wrote to memory of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 4892 wrote to memory of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 4892 wrote to memory of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 4892 wrote to memory of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 4892 wrote to memory of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 4892 wrote to memory of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 4892 wrote to memory of 740	4892	SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe	84
PID 740 wrote to memory of 1148	740	cvtres.exe	85
PID 740 wrote to memory of 1148	740	cvtres.exe	85
PID 740 wrote to memory of 1148	740	cvtres.exe	85
PID 740 wrote to memory of 1148	740	cvtres.exe	85
PID 740 wrote to memory of 1148	740	cvtres.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownloaderNET.345.23488.23453.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:740
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:1148

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/740-134-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/740-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/740-139-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/740-144-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1148-141-0x0000000000F90000-0x0000000000FAA000-memory.dmp

Filesize
104KB

Download
memory/1148-142-0x0000000005430000-0x0000000005496000-memory.dmp

Filesize
408KB

Download
memory/1148-143-0x0000000006000000-0x000000000609C000-memory.dmp

Filesize
624KB

Download
memory/4892-132-0x00000000002C0000-0x00000000002EC000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing